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An 8.5-kg object passes through the origin with a velocity of 42 m/s parallel to the x axis. It experiences a constant 19-N force in the direction of the positive y axis. Calculate (a) the velocity and (b) the position of the particle after 15 s have elapsed

An 8.5-kg object passes through the origin with a velocity of 42 m/s parallel to the x axis. It experiences a constant 19-N force in the direction of the positive y axis. Calculate (a) the velocity and (b) the position of the particle after 15 s have elapsed

Grade:11

2 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago
The force of 19 N acts in the positive y direction along the unit vector \widehat{j}, therefore one can write,
236-770_1.PNG
236-264_1.PNG
Round off to two significant figures,
236-355_1.PNG
236-427_1.PNG
Round off to two significant figures,
236-2146_1.PNG
Ailamae Orobia
26 Points
2 years ago
A particle leaves the origin at t = 0 with the initial velocity of v = (3.6 m/s)l. It experiences a constant acceleration a = -(1.2 m/s)i - (1.4 m/s)j. (a) At what time does the particle reach its maximum x coordinate? (b) What is the velocity of the particle at this time? (C) Whee is the particle at this time?

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